💰 国際電話料金

国際通話のコストを計算し、節約額をすぐに比較

電話での国際通話と無料インターネットアプリのコストを比較しましょう。発信元の国と相手先を選び、通信事業者の1分あたりの料金を入力すると、節約額がすぐにわかります。

MethodCostQualityRequirements
MethodTraditional call (mobile carrier)CostDepends on your plan — charged per minuteQualityHigh and stableRequirementsAn active phone line
MethodCalling cards / paid VoIP servicesCostUsually cheaper than traditional (varies by provider)QualityMedium to highRequirementsBuying credit or a card
MethodInternet apps (WhatsApp, Signal, Messenger)CostFree — uses data onlyQualityDepends on internet speedRequirementsInternet + the app on both ends

🌍 Calculate Your Savings

📊 Your result

📝 Notes

These results are estimates based on the rate you enter. Currency conversions use daily reference rates and may differ slightly from your bank or carrier.

You enter the rates from your own carrier — we store no prices. For comparison only.

よくある質問

What is the cheapest way to call 別の国?
The cheapest way to call 別の国 is through internet apps such as WhatsApp and Signal, which have no per-minute charge and use only your internet data when both sides have the app. Traditional calls through a mobile carrier are charged per minute based on your plan, while international calling cards can be cheaper. Use the savings calculator on this page to see how much you can save.
国を選ぶと計算される料金は変わりますか?
いいえ。結果は、ご自身の通信事業者から入力した通話分数と1分あたりの料金のみを使用します。国の選択は正しい国番号と通貨を設定するだけで、事業者の料金を保存したり作り出したりすることはありません。

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